81884478

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{1669}}^1$

素因数の和:1741

約数の個数: 64

約数和(自身を含む): 191903040

約数和(自身を除く): 110018562

約数列:

[1, 2, 3, 6, 13, 17, 26, 34, 37, 39, 51, 74, 78, 102, 111, 221, 222, 442, 481, 629, 663, 962, 1258, 1326, 1443, 1669, 1887, 2886, 3338, 3774, 5007, 8177, 10014, 16354, 21697, 24531, 28373, 43394, 49062, 56746, 61753, 65091, 85119, 123506, 130182, 170238, 185259, 368849, 370518, 737698, 802789, 1049801, 1106547, 1605578, 2099602, 2213094, 2408367, 3149403, 4816734, 6298806, 13647413, 27294826, 40942239, 81884478]

約数ペア:

[(1, 81884478), (2, 40942239), (3, 27294826), (6, 13647413), (13, 6298806), (17, 4816734), (26, 3149403), (34, 2408367), (37, 2213094), (39, 2099602), (51, 1605578), (74, 1106547), (78, 1049801), (102, 802789), (111, 737698), (221, 370518), (222, 368849), (442, 185259), (481, 170238), (629, 130182), (663, 123506), (962, 85119), (1258, 65091), (1326, 61753), (1443, 56746), (1669, 49062), (1887, 43394), (2886, 28373), (3338, 24531), (3774, 21697), (5007, 16354), (8177, 10014)]